公开(公告)号：US09560461B2

公开(公告)日：2017-01-31

申请号：US14761906

申请日：2014-01-17

Applicant: DOLBY LABORATORIES LICENSING CORPORATION ,  DOLBY INTERNATIONAl AB

Inventor： Mark F. Davis ,  Louis Fielder ,  Antonio Mateos Sole ,  Giulio Cengarle ,  Sunil Bharitkar

IPC: H04R29/00 ,  H04S7/00 ,  H04S3/00

CPC classification number: H04R29/001 ,  H04R29/002 ,  H04S3/00 ,  H04S7/00

Abstract: In some embodiments, a method for automatic detection of polarity of speakers, e.g., speakers installed in cinema environments. In some embodiments, the method determines relative polarities of a set of speakers (e.g., loudspeakers and/or drivers of a multi-driver loudspeaker) using a set of microphones, including by measuring impulse responses, including an impulse response for each speaker-microphone pair; clustering the speakers into a set of groups, each group including at least two of the speakers which are similar to each other in at least one respect; and for each group, determining and analyzing cross-correlations of pairs of impulse responses (e.g., pairs of processed versions of impulse responses) of speakers in the group to determine relative polarities of the speakers. Other aspects include systems configured (e.g., programmed) to perform any embodiment of the inventive method, and computer readable media (e.g., discs) which store code for implementing any embodiment of the inventive method.

Abstract translation: 在一些实施例中，用于自动检测扬声器（例如安装在电影环境中的扬声器）的极性的方法。 在一些实施例中，该方法使用一组麦克风来确定一组扬声器（例如，多驱动扬声器的扬声器和/或驱动器）的相对极性，包​​括通过测量脉冲响应，包括每个扬声器麦克风的脉冲响应 对; 将扬声器聚集成一组，每个组包括至少两个在至少一个方面彼此相似的扬声器; 并且对于每个组，确定和分析组中的扬声器的脉冲响应对（例如脉冲响应的处理版本对）的交叉相关性，以确定扬声器的相对极性。 其他方面包括配置（例如，编程）用于执行本发明方法的任何实施例的系统，以及存储用于实现本发明方法的任何实施例的代码的计算机可读介质（例如，盘）。

公开(公告)号：US09602940B2

公开(公告)日：2017-03-21

申请号：US15282631

申请日：2016-09-30

Applicant: Dolby Laboratories Licensing Corporation

Inventor： Sunil Bharitkar ,  Brett Crockett ,  Louis Fielder ,  Michael Rockwell

IPC: H04R29/00 ,  H04R3/12

CPC classification number: H04R29/002 ,  H04H60/04 ,  H04H60/33 ,  H04R3/12 ,  H04R29/001 ,  H04R2430/03

Abstract: In some embodiments, a method for monitoring speakers within an audio playback system (e.g., movie theater) environment. In typical embodiments, the monitoring method assumes that initial characteristics of the speakers (e.g., a room response for each of the speakers) have been determined at an initial time, and relies on one or more microphones positioned in the environment to perform a status check on each of the speakers to identify whether a change to at least one characteristic of any of the speakers has occurred since the initial time. In other embodiments, the method processes data indicative of output of a microphone to monitor audience reaction to an audiovisual program. Other aspects include a system configured (e.g., programmed) to perform any embodiment of the inventive method, and a computer readable medium (e.g., a disc) which stores code for implementing any embodiment of the inventive method.